AuthorTopic: Undo bug? (Read 2667 times)

Hi. This is probably a question that has been addressed someplace before, but I have no idea what to do about it.

OK, so here's what happens: I'm in Figure Mode, and 2 really strange things happen when I move objects.

First, the object moved (and sometimes others in the scene) seems to lose its materials and turn to a shade of gray.

Second, when I hit "Undo" I get this message:----------------------------------------The instruction at "0x0043dda3" referenced memory at "0x00000000". THe memory could not be "read".

Click on OK to terminate the program.----------------------------------------Obviously, this is some programmer-level code and it's written in a language I don't understand. Does anybody know what's going on, or what can be done about this?